\ 



J. O. BAKER OIT SOME NEW SPECIES OF nYMENOPlirLLACE^. 337 



A very distinct plant, most like T. memlranaceum in texture and 

 appearance, but smaller in size, different in habit of growth, and 

 not furnished with the row of double peltate scales which in that 

 species margin the outer edge of the frond and form the principal 

 characteristic of Presl's genus Lecanium, There is a T. peltatum 

 of Poiret, which Sir W. Hooker places as a synonym of Ilymeno- 

 phyllum Wihoni. 



4. T. MEMBRANACEUM L. ; (Lecanium) PresL 

 Tropical America, both islands and mainland. 



. 5. T. cuspiDATUM, Willd.; ( Microgonium ) Pre^/, T. Bojeri, Hook, 

 Sf Greville, Icones FiL t. 155. 

 Mascaren Isles. 



6. T. MoTLEYi, (Microgonium) F, d. B, Hymen, Javan. p. 5, t. 1. 

 Borneo. 



7. T, GoDMANi, Hook, MS., n. sp. Frondibus stipitatis suborbiculatis 

 vel obovatis, marginibus subintegris vel parce lobatis, venis et venulis 

 spuriis flabellatim dispositis, involucris panels inclusis, ore integro 

 dilatato. 



Ehizome wide-creeping, slender, tomentose. Stipes a quarter to 

 half an inch long, tomentose like the rhizome, or naked. Fronds 

 thinly membranaceous in texture, measuring from a quarter to 

 more than half an inch each way, orbicular or obovate, the margin 

 undulated, nearly entire, or slightly lobed, as if furnished with a 

 central costa in the lower part, but flabellately veined above, the 

 veins cloise, two or three times dichotomous before they reach the 

 margin ; spiu^ious venules indistinct ; sori one to nine, terminal 

 on the central veins ; involucres cylindrical, tapering at the base, 

 quite sunk in the frond, the mouth much dilated but not two- 

 lipped, the receptac^e included or exserted. 



Gautemala, Salvin ^' Godman ; Panama, Hayes, no. 33. 



Most like T,punctatum in appearance; but that falls under 

 Ilemi-phlebium, this under Microgonium. T. Motleyi has a frond 

 similar in size and outline, but a solitary completely exserted in- 

 volucre. 



8. T. PUNCTATUM, Poiret', (Ilemiphlebium) PresL 

 Tropical America, both the mainland and islands. 



9. T. REPTAXS (probably of Swartz, certainly of Hooker and Greville 

 including sphenoides of Kunze, at any rate in greater part), (Ilemi- 

 phlebium) PresL 



Tropical America, both the mainland and islands. 



